Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160028goodexcellent31excellent
150034goodexcellent31excellent
140064moderately pollutedexcellent21excellent
130060lightly pollutedexcellent21excellent
120056lightly pollutedexcellent31excellent
110032goodexcellent31excellent
100024goodexcellent41excellent
090024goodexcellent41excellent
080023goodexcellent41excellent
070023goodexcellent41excellent
060020goodexcellent41excellent
050021goodexcellent41excellent
040021goodexcellent31excellent
030022goodexcellent31excellent
020023goodexcellent31excellent
010021goodexcellent31excellent
000023goodexcellent41excellent
230026goodexcellent41excellent
220023goodexcellent31excellent
210020goodexcellent21excellent
200016goodexcellent21excellent
190021goodexcellent21excellent
180021goodexcellent21excellent
170019goodexcellent21excellent